<nz-input-group nzAddOnBefore="名称" >
  <input type="text" nz-input [(ngModel)]="t.name" placeholder="该项必填"/>
</nz-input-group>
<nz-input-group nzAddOnBefore="排序码" >
  <input type="text" nz-input [(ngModel)]="t.basecode" />
</nz-input-group>
